CN206834826U - A kind of single-phase low capacity dual power supply quick converting switch - Google Patents
A kind of single-phase low capacity dual power supply quick converting switch Download PDFInfo
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- CN206834826U CN206834826U CN201621440607.2U CN201621440607U CN206834826U CN 206834826 U CN206834826 U CN 206834826U CN 201621440607 U CN201621440607 U CN 201621440607U CN 206834826 U CN206834826 U CN 206834826U
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- power supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model belongs to low-voltage electrical apparatus and power distribution field,Three-phase mechanical formula dual-power transfer switch common at present,The Power convert time is grown,The power-off time that important electronics electrical equipment is allowed can not be met,And use the high volume of dual-power transfer switch price of IGCT big,The utility model is made up of housing and one piece of internal wiring board,Internal circuit board is by outlet terminal,Relay,Detection,Optocoupler,Single-chip microcomputer controls,Relay drive circuit,Power supply forms,There are two relays inside,By the contact of the two relays,Complete the function of two-way Power convert,Single-chip microcomputer is the core of whole circuit,It receives the signal for the conventional power supply that optocoupler transmits,After the judgement of control software,Issue instructions to relay drive circuit,Make relay quick pick-up or release,Complete the function of two-way power supply rapid translating.The utility model can reach important electronics electrical equipment unbroken purpose in Power convert, have the low-cost advantage of small volume.
Description
Technical field
A kind of single-phase low capacity dual power supply quick converting switch is the utility model is related to, it is especially a kind of to be made using relay
The dual power supply quick converting switch for being detected and being controlled by single-chip microcomputer for transfer switch element, inside, the utility model
Belong to low-voltage electrical apparatus and power distribution field.
Background technology
Current important power load is powered using double loop power supply, is transformed on another way power supply and is ensured when powering off all the way
Power supply is not interrupted, and for important electronics electrical equipment, such as runs the computer of important procedure, industrial computer, interchanger, DCS, important
The illumination in place etc., it is directly all single-phase 220V AC powers using power supply, its do not require nothing more than power supply can automatic conversion,
Also require that the time of Power convert is very short, otherwise of short duration power-off can stop the work of these important electronics electrical equipments
Only, once these electronics electrical equipments are stopped, very big loss is will result in, although current double power supply automatic transfer switch
Product is a lot, but the overwhelming majority is the Large Copacity change-over switch product of mechanical three-phase, and the conversion time of this kind of product compares
It is long, typically at 0.1 second between the several seconds, in Power convert, have an of short duration power-off time, electronics electrical equipment its permit
Perhaps power-interrupt time should be within 10 milliseconds, and the only time of Power convert within 10 milliseconds, just can ensure that important
Electronic equipment do not interrupt.And during the Large Copacity change-over switch product conversion of most short 0.1 second of mechanical type three-phase common at present
Between be clearly the unbroken requirement of power supply that can not meet important electronics electrical equipment.
It is this kind of although there is the static double power supply automatic transfer switch using IGCT as transfer switch element at present
The Power convert speed ratio of switch is very fast, can reach within 10 milliseconds, and electronics power supply for electrical equipment is not interrupted during Power convert,
But the IGCT that this kind of switch uses is a kind of power semiconductor device, and the ability of its anti overvoltage overcurrent is weaker, brilliant lock
Tube capacity is fragile, and circuit is more complicated, and price is high, and due to the heat dissipation problem of IGCT to be considered, its volume is also to compare
Big.
The content of the invention
The purpose of this utility model is that designing a kind of low-cost single-phase low capacity dual power supply rapid translating of small volume opens
Close, its conversion time can reach in Power convert within 10 milliseconds, the unbroken requirement of electronics power supply for electrical equipment.
What the utility model was realized in：The switch of power load is changed using relay common at present, relay
It is a kind of common electric elements, its contact capacity can meet low capacity electronics electrical equipment from several amperes to tens of amperes
The requirement of load current, and the contact action of relay coordinates suitable drive circuit, can make the contact of relay apart from short
Responsiveness accelerate, 10 milliseconds of actuation time can be reached, in meeting important electronics electrical equipment in Power convert not
Disconnected purpose.
The utility model is made up of the packaged wiring board in housing of housing and one, and the circuit on wiring board is by leading-out terminal
Totally seven parts form for son, relay, detection, optocoupler, single-chip microcomputer control, relay drive circuit, power supply.
Outlet terminal is the connector of this switch and external circuit, shares six binding posts, is conventional power supply L respectively, normal
With power supply N, output L, output N, stand-by power supply L, stand-by power supply N.Relay in this switch shares two, is that L lines turn respectively
Change relay, N line switching relays.Wherein conventional power supply L is connected to the stationary contact of L line switching relay normally-closed contacts, standby
Power supply L is connected to the stationary contact of the normally opened contact of L line switching relays, and output L is connected to the moving contact end of L line switching relays.
Conventional power supply N is connected to the stationary contact of N line switching relay normally-closed contacts, and stand-by power supply N is connected to the normally opened of N line switching relays
The stationary contact of contact, output N are connected to the moving contact end of N line switching relays.
Detection circuit on one side connects conventional power supply L and conventional power supply N, another termination optocoupler.Optocoupler is that one kind is isolated by light
Circuit, while the device of and can transmission signal, its effect is isolation detection circuit and single chip circuit, enables two-way power supply complete
Full isolation, at the same again detection electric circuit inspection to the signal of conventional power status be transferred to single-chip microcomputer.One termination inspection of optocoupler
Slowdown monitoring circuit, the other end connect single-chip microcomputer.
Single chip machine controlling circuit is the core of this switch, and it is the signal for receiving the conventional power supply that optocoupler transmits that it, which is acted on,
After the judgement of control software, relay drive circuit is issued instructions to, drives relay adhesive or release, completes power supply
The function of conversion.
Relay drive circuit, it is driving relay adhesive or release that it, which is acted on, and it relies on the relay that power unit provides
Device driving power, after receiving adhesive that single-chip microcomputer sends or releasing order, complete the adhesive or release of relay.Relay
Drive circuit is made up of storage capacitor C, triode Q, protective resistance R, and storage capacitor C is connected to the both ends of relay driving power supply,
It is storage energy of a charge that it, which is acted on, and the speed that big electric current accelerates relay adhesive action is provided in the moment of relay adhesive,
Shorten the time of relay adhesive.The coil series connection of two relays, an end is connected to relay driving power supply end, another to terminate to
Triode Q colelctor electrode, triode Q ground level connect single chip circuit, receive the command signal that single-chip microcomputer is sent, triode Q's
Grounded emitter.The termination triodes of protective resistance R mono- Q colelctor electrode, another termination triode Q emitter stage, protective resistance R's
Effect is when relay discharges, and provides a path for the energy release of relay coil storage, protection triode Q is unlikely to
By relay coil power off caused by high electrical breakdown.
Power supply one end picks out stand-by power supply L in line terminals, stand-by power supply N, other end output two-way power supply, all the way voltage compared with
The small dc source output of high current, is connected to relay drive circuit, provides power supply for relay adhesive, another way voltage is relatively low
DC stable power supply be connected to single chip circuit, for single-chip microcomputer work power supply is provided.
Operation principle of the present utility model is：Two-way power supply in external circuit often uses power supply and stand-by power supply, is connected to out
The corresponding terminals of line terminals, outlet terminal on outlet terminal is connected to electric loading.When conventional power supply is normal, electricity is commonly used
Source is converted into small voltage signal by detecting circuit, by conventional power supply voltage signal, by optocoupler, transmits a signal to monolithic
Machine, the workflow of single-chip microcomputer internal processes is a cycle detection and performs the flow of corresponding operating, and single-chip microcomputer detects often
With supply voltage it is normal after, be issued by the instruction that relay is failure to actuate, after relay drive circuit is connected to this instruction, triode Q
Cut-off, no current flow through triode Q colelctor electrode, and the coil for two relays being connected in triode Q collector loops does not have
There is high current to flow through, relay is failure to actuate, due to a resistance R in parallel between triode Q collector and emitters so that i.e.
Make also to have the coil that an electric current flows through relay during triode Q cut-offs, but the current values very little, do not reach relay
The minimum current of adhesive, so relay will not adhesive.Conventional contact of the power supply by relay, is switched on outlet terminal
In output end, it is connected on the terminal and obtains electric work with electric loading.
When conventional supply voltage is too low or during dead electricity, by detecting circuit, single-chip microcomputer detects conventional supply voltage mistake
Low or dead electricity, the workflow of single-chip microcomputer internal processes are a cycle detection and perform the flow of corresponding operating, single-chip microcomputer
After detecting conventional supply voltage exception, the instruction of the actuating of relay is issued by, after relay drive circuit is connected to this instruction, three
Pole pipe Q is turned on, and electric current flows through triode Q colelctor electrode, the coil for two relays being connected in triode Q collector loops
Also electric current flows through, relay adhesive, stand-by power supply is switched in the output end on outlet terminal by the contact of relay,
It is connected on the terminal and obtains electric work with electric loading.
The operation principle of relay drive circuit is：When relay is failure to actuate, now triode Q ends, power supply
Export the small DC relay driving power of a voltage high current to charge to storage capacitor C, storage capacitor C both ends can produce one
The individual DC voltage for being far above two relay rated operational voltages, the voltage at storage capacitor C both ends pass through two relays
Coil and protective resistance R, there is a leakage current, the presence of this electric current, the voltage at storage capacitor C both ends can be made to be unlikely to too
Height, protection storage capacitor C will not be damaged, when single-chip microcomputer sends the instruction of relay adhesive, triode Q conductings, and storage capacitor C
The voltage at both ends has the release of a high current by the coil and triode Q of two relays over the ground, this electric current make two after
Electrical equipment quick acting adhesive, because the time of high current is very short, the coil of relay will not damage, and and can realizes that relay is fast
The purpose that quick-action is made, with the release of electric charge in storage capacitor C, storage capacitor C both end voltages decline rapidly, in relay coil
Electric current reduce, when reaching stable state, the electric current that is flowed through in relay coil can make relay keep adhesive not discharge just,
Relay quick pick-up can so be made, and can makes relay electric current in adhesive hold mode smaller, reduces relay coil
Heating.
The beneficial effects of the utility model are, using the big common component of this price low capacity of relay, by monolithic
Core of the machine as detection and control, using the capacitance energy storage relay drive circuit with innovation, accelerates relay adhesive
Speed, the two-way Power convert time is realized less than 10 milliseconds, important electronic equipment uninterrupted power supply during two-way Power convert
Purpose, it is the important power electronic equipment of user, there is provided a kind of good implementation of poorly efficient fruit of price.
Brief description of the drawings
Accompanying drawing 1 is external form figure of the present utility model
In figure：1. normal power supply L, 2. often with power supply N, and 3. output L, 4. export N, 5. stand-by power supply L, 6. stand-by power supplies
N, 7. outlet terminals, 8. stand-by power supply indicator lamps, 9. in-put of spare power supply indicator lamps, 10. often with power supply put into indicator lamp, 11.
Conventional power supply indicator.
Accompanying drawing 2 is internal circuit board block diagram of the present utility model
In figure：1. normal power supply L, 2. often with power supply N, and 3. output L, 4. export N, 5. stand-by power supply L, 6. stand-by power supplies
N, 7. outlet terminals, 12.N line switching relays, 13. triode Q, 14. resistance R, 15. relay drive circuits, 16. power supplys,
17. relay driving power supply, 18. working powers, the control of 19. single-chip microcomputers, 20. optocouplers, 21. detections, 22. storage capacitor C, 23.L
Line switching relay, 24. relays.
Embodiment
In Fig. 1, a kind of single-phase low capacity dual power supply quick converting switch described in the utility model, installed in a side
In the housing of type, six outlet terminals (7) are arranged at top, are conventional power supply L (1), conventional power supply N (2) respectively, export L (3), be defeated
Go out N (4), stand-by power supply L (5), stand-by power supply N (6), case panel there are four indicator lamps on left side, is that conventional power supply refers to respectively
Show lamp (11), conventional power supply input indicator lamp (10), stand-by power supply indicator lamp (8), in-put of spare power supply indicator lamp (9).
In fig. 2, a kind of single-phase low capacity dual power supply quick converting switch described in the utility model, its internal circuit plate
By outlet terminal (7), relay (24), detection (21), optocoupler (20), single-chip microcomputer control (19), relay drive circuit (15),
Totally seven parts form power supply (16).
Outlet terminal (7) is the connector of this switch and external circuit, shares six binding posts, is conventional power supply L respectively
(1) power supply N (2), output L (3), output N (4), stand-by power supply L (5), stand-by power supply N (6), are commonly used.Relay in this switch
(24) two are shared, is L lines switching relay (23), N lines switching relay (12) respectively.Wherein conventional power supply L (1) is connected to L
The stationary contact of line switching relay (23) normally-closed contact, stand-by power supply L (5) are connected to the normally opened of L lines switching relay (23) and touched
The stationary contact of point, output L (3) are connected to the moving contact end of L lines switching relay (23).Conventional power supply N (2) is connected to the conversion of N lines
The stationary contact of relay (12) normally-closed contact, stand-by power supply N (6) are connected to the quiet of the normally opened contact of N lines switching relay (12)
Contact end, output N (4) are connected to the moving contact end of N lines switching relay (12).
Detection (21) circuit on one side connects conventional power supply L (1) and conventional power supply N (2), another termination optocoupler (20).Optocoupler
(20) one termination detection (21) circuits, the other end connect single-chip microcomputer control (19) circuit.Single chip machine controlling circuit (19) is this switch
Core, it receives optocoupler (20) conventional power supply voltage signal for transmitting, after judging, issues instructions to relay driving electricity
Road (15), relay drive circuit (15) driving relay (24) adhesive or release, complete the conversion of two-way power supply.Relay drives
Dynamic circuit (15) is made up of storage capacitor C (22), triode Q (13), protective resistance R (14), and storage capacitor C (22) is connected to relay
The both ends of device driving power (17), it is storage energy of a charge that it, which is acted on, and providing big electric current in the moment of relay adhesive accelerates
The speed of relay (24) adhesive action, shorten the time of relay (24) adhesive.The coil and N of L lines switching relay (23)
The coil series connection of line switching relay (12), an end is connected to relay driving power supply (17), another to terminate to triode Q's (13)
Colelctor electrode, triode Q (13) ground level connect single-chip microcomputer control (19) circuit, receive the command signal that single-chip microcomputer is sent, triode
Q (13) grounded emitter, protective resistance R (14) one terminate triode Q (13) colelctor electrode, another termination triode Q (13)
Emitter stage.
Power supply (16) one end picks out stand-by power supply L (5) in line terminals, stand-by power supply N (6), and the other end exports two-way power supply,
It is all the way relay driving power supply (17), is connected to relay drive circuit (15), power supply is provided for relay (24) adhesive, it is another
Road is working power (18), is connected to single-chip microcomputer control (19) circuit.
Claims (8)
1. a kind of single-phase low capacity dual power supply quick converting switch, it is characterized in that：In the housing of a square, top has
Six outlet terminals (7), it is conventional power supply L (1), conventional power supply N (2), output L (3), output N (4), stand-by power supply L respectively
(5), stand-by power supply N (6), case panel have four indicator lamps on left side, are conventional power supply indicator (11), conventional power supply respectively
Put into indicator lamp (10), stand-by power supply indicator lamp (8), in-put of spare power supply indicator lamp (9).
2. a kind of single-phase low capacity dual power supply quick converting switch according to claim 1, it is characterized in that：Internal circuit board
By outlet terminal (7), relay (24), detection (21), optocoupler (20), single-chip microcomputer control (19), relay drive circuit (15),
Totally seven parts form power supply (16).
3. a kind of single-phase low capacity dual power supply quick converting switch according to claim 1, it is characterized in that：Outlet terminal
(7) be this switch and external circuit connector, share six binding posts, be respectively conventional power supply L (1), conventional power supply N (2),
Export L (3), output N (4), stand-by power supply L (5), stand-by power supply N (6).
4. a kind of single-phase low capacity dual power supply quick converting switch according to claim 1, it is characterized in that：Internal relay
Device (24) shares two, is L lines switching relay (23), N lines switching relay (12) respectively, by touching for this two relays
Point, the function of two-way Power convert is completed, wherein conventional power supply L (1) is connected to the stationary contact of L lines switching relay (23) normally-closed contact
Head end, stand-by power supply L (5) are connected to the stationary contact of the normally opened contact of L lines switching relay (23), and output L (3) is connected to L lines and turned
The moving contact end of relay (23) is changed, conventional power supply N (2) is connected to the stationary contact of N lines switching relay (12) normally-closed contact, standby
The stationary contact of the normally opened contact of N lines switching relay (12) is connected to power supply N (6), output N (4) is connected to N line switching relays
(12) moving contact end.
5. a kind of single-phase low capacity dual power supply quick converting switch according to claim 1, it is characterized in that：Detect (21) electricity
The conventional power supply of the termination of road one, the other end are connected by optocoupler (20) with single-chip microcomputer control (19) circuit.
6. a kind of single-phase low capacity dual power supply quick converting switch according to claim 1, it is characterized in that：Internal monolithic
Machine control (19) circuit is the core of whole circuit, and it is the signal for receiving the conventional power supply that optocoupler (20) transmits that it, which is acted on, is passed through
After crossing the judgement of control software, relay drive circuit (15) is issued instructions to, drives relay (24) adhesive or release, it is complete
Into the function of two-way Power convert.
7. a kind of single-phase low capacity dual power supply quick converting switch according to claim 1, it is characterized in that：Internal relay
Device drive circuit (15) is made up of storage capacitor C (22), triode Q (13), protective resistance R (14), and storage capacitor C (22) is connected to
The both ends of relay driving power supply (17), it is storage energy of a charge that it, which is acted on, and big electric current is provided in the moment of relay adhesive
Accelerate the speed of relay (24) adhesive action, shorten the time of relay (24) adhesive, the coil of L lines switching relay (23)
Connected with the coil of N lines switching relay (12), an end is connected to relay driving power supply (17), another to terminate to triode Q
(13) colelctor electrode, triode Q (13) ground level connect single-chip microcomputer control (19) circuit, receive the command signal that single-chip microcomputer is sent,
Triode Q (13) grounded emitter, protective resistance R (14) one terminate triode Q (13) colelctor electrode, another termination triode
Q (13) emitter stage.
8. a kind of single-phase low capacity dual power supply quick converting switch according to claim 1, it is characterized in that：Power supply (16) one
Stand-by power supply L (5), stand-by power supply N (6) on outlet terminal are terminated, other end output two-way power supply, is all the way relay driving electricity
Source (17), relay drive circuit (15) being connected to, power supply is provided for relay (24) adhesive, another way is working power (18),
It is connected to single-chip microcomputer control (19) circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621440607.2U CN206834826U (en) | 2016-12-22 | 2016-12-22 | A kind of single-phase low capacity dual power supply quick converting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621440607.2U CN206834826U (en) | 2016-12-22 | 2016-12-22 | A kind of single-phase low capacity dual power supply quick converting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206834826U true CN206834826U (en) | 2018-01-02 |
Family
ID=60779589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621440607.2U Active CN206834826U (en) | 2016-12-22 | 2016-12-22 | A kind of single-phase low capacity dual power supply quick converting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206834826U (en) |
-
2016
- 2016-12-22 CN CN201621440607.2U patent/CN206834826U/en active Active
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